Model 1730A Compact Dehumidifier
Owner’s Manual
CAUTION
1. Do not use solvents or cleaners on or near the display or circuit board.
2. Unplug the dehumidifier before servicing. Sudden operation may cause personal injury or property damage.
PRINCIPLE OF OPERATION
Your Aprilaire
®
Whole-Home Dehumidifier installs as part of your home’s central heating and cooling system, removing excess moisture and
reducing the damage that mold and mildew can have on the sustainability of your home and the health of your family. The Model 76 digital
control constantly monitors and displays the relative humidity of the air in your home and controls it to the level you set, putting you in control
of your comfort.
PLEASE LEAVE THIS MANUAL WITH THE HOMEOWNER
Installed by: ____________________________________ Installer Phone: _____________________ Date Installed: ______________
On/Off Switch
Alternate
Outlet Location
Wire Access Door
Status LEDs
Filter Access Door
Inlet
Drain
Power Cord
Outlet
Model 76 Control
1
OPERATING INSTRUCTIONS
Begin by plugging in the dehumidifier and turning the On/Off switch ON.
DEHUMIDIFIER
CONTROL
The control will allow you to set the desired relative humidity (%RH)
level in your home and can be used to turn dehumidification On or Off.
Begin by pressing the ON button and ON will be displayed on the LCD
Screen (see LCD display in Figure 1). Use the arrow buttons to set the
control at 59% when first installed. Allow the dehumidifier to run until
the initial setpoint has been reached, before deciding if you want to
change the humidity setting.
Raise the setting if you prefer the air to be less dry; this will
reduce the amount of time that the dehumidifier runs.
Lower the setting if you prefer the air to be more dry; this
will increase the amount of time that the dehumidifier runs.
Your comfort is the best measure of how to adjust your setting. When
first installed, your dehumidifier has to remove all the moisture that
is initially in your home. The home acts like a sponge so the moisture
in the materials of your home is at the same level as the air. After
drying the air, the materials of the home will release moisture back
into the air until they are again at the same level. As a result, it is not
uncommon for the dehumidifier to operate for an extended period of
time when first installed.
FIGURE 1 – Control Display and User Buttons
LCD Display
Mode Buttons – Use
to turn control On/Off.
Buttons – Use to view
and set humidity setting.
Energy Savings Tip #1: Adjust the setting to be as high as is comfortable to reduce dehumidifier run time – if it feels clammy or smells
damp or moldy lower the setting. To save energy, turn the dehumidifier control OFF when you open your windows just as you would with
air conditioning.
Energy Savings Tip #2: If vacating your home for an extended period in the summer, set the RH at 59% and set your thermostat to as
high as you are comfortable setting it in the cooling mode. Consult with appropriate professionals regarding the highest temperature that
is safe for your pets or possessions. This will keep the humidity at a controlled level to help prevent mold while minimizing the amount of
cooling energy used.
FIGURE 2 – LCD Display
90-1636
Blinking ON +
*
: Control Limit Exceeded.
See Control Limits, page 3.
Solid ON:
Control On
Blinking ON:
Dehumidifying
Numbers show
current room humidity
OR humidity setting
SET is displayed
when
or
is
pressed. The value
displayed is the
humidity setting.
See Figure 5.
OFF: Control Off
LCD DISPLAY
2
TURNING CONTROL ON/OFF
FIGURE 3 – ON/OFF Buttons
• PressingtheONbuttonwillturnonthecontrol.
• PressingtheOFFbuttonwillturnoffthecontrol.
• ThecontrolwillcontinuetodisplaythemeasuredhumiditywhenOFF.
• ThehumiditysettingcannotbechangedwhenthecontrolisOFF.
CHANGING THE HUMIDITY SETTING
FIGURE 4 – UP/DOWN Buttons
• Thefirstpressofeitherthe
or
button will display the humidity setting
on the LCD. The setting can be adjusted
between 40% and 80%.
• Eachsubsequentpushoftheupordown
buttons will change the setting by 1%.
• Ifabuttonishelddown,thesetting
will continually change by 1% every
1/2 second for as long as the button is
pressed.
• Thecontrolwillexitthehumiditysetting
screen 5 seconds after the last button
press/release.
FIGURE 5 – Humidity Setting Screen
90-1637
HOW DOES THE CONTROL WORK?
• Whenthemeasuredhumidityisgreaterthanthesetting,thecontrolwillturnonthedehumidifierandONwillblinkontheLCDdisplay.
• Whenthemeasuredhumidityfalls3%belowthesetting,thecontrolwillturnoffthedehumidifierandONwillstopblinking,butremain
displayed on the LCD.
SEQUENCE OF OPERATION
• Thedehumidifierwillturnoffifoneofthecontrollimitshasbeenexceeded.
• Ifthecontrolmeasuresadewpointbelow40°FORatemperatureabove99°F,thecontrolwilldeactivatethedehumidifieroutputifactively
dehumidifying, the dehumidifier will stop dehumidifying, and ON and
*
will blink on the LCD screen (see Figure 2).
• Thecontrolwillresumenormaloperationwhenconditionsfallbackwithinthecontrollimits.
CONTROL LIMITS
The control limits are used to make sure the dehumidifier does not run when conditions are outside of the operating limits. Dehumidifiers are not
as effective when conditions are outside of the operating limits. For example, the dehumidifier will not remove much moisture when conditions
are cool and dry. Control limits allow the dehumidifier to work efficiently within the operating range and turn off when conditions are outside of
these limits.
• DewPointLowerLimit:40°F
• TemperatureHighLimit:99°F
3
Take a few minutes to visit us on-line at www.aprilaire.com to register your Aprilaire product.
If you do not have on-line access, please mail a postcard with your name, address, phone number, product purchased and date of purchase to:
Research Products Corporation, P.O. BOX 1467, Madison, WI 53701
Thank you!
YOUR WARRANTY REGISTRATION INFORMATION WILL NOT BE SOLD OR SHARED OUTSIDE OF THIS COMPANY.
Your Research Products Corporation Aprilaire Dehumidifier is expressly warranted for five (5) years from date of installation to be free from defects
in materials or workmanship.
Research Products Corporation’s exclusive obligation under this warranty shall be to supply, without charge, a replacement for any component
which is found to be defective within such five (5) year period and which is returned not later than thirty (30) days after said five (5) year period
by you to either your original supplier or to Research Products Corporation, Madison, Wisconsin 53701, together with the model number and
installation date of the dehumidifier.
THIS WARRANTY SHALL NOT OBLIGATE RESEARCH PRODUCTS CORPORATION FOR ANY LABOR COSTS AND SHALL NOT APPLY TO DEFECTS IN
WORKMANSHIP OR MATERIALS FURNISHED BY YOUR INSTALLER AS CONTRASTED TO DEFECTS IN THE DEHUMIDIFIER ITSELF.
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL BE LIMITED IN DURATION TO THE AFORESAID
FIVE YEAR PERIOD. RESEARCH PRODUCTS CORPORATION’S LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, OTHER THAN
DAMAGES FOR PERSONAL INJURIES, RESULTING FROM ANY BREACH OF THE AFORESAID IMPLIED WARRANTIES OR THE ABOVE LIMITED
WARRANTY IS EXPRESSLY EXCLUDED. THIS LIMITED WARRANTY IS VOID IF DEFECT(S) RESULT FROM FAILURE TO HAVE THIS UNIT INSTALLED
BY A QUALIFIED HEATING AND AIR CONDITIONING CONTRACTOR. IF THE LIMITED WARRANTY IS VOID DUE TO FAILURE TO USE A QUALIFIED
CONTRACTOR, ALL DISCLAIMERS OF IMPLIED WARRANTIES SHALL BE EFFECTIVE UPON INSTALLATION.
Somestatesdonotallowlimitationsonhowlonganimpliedwarrantylastsortheexclusionorlimitationofincidentalorconsequentialdamages
so the above exclusion or limitations may not apply to you.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
WARRANTY REGISTRATION
LIMITED WARRANTY
MAINTENANCE
The air filter in the dehumidifier should be cleaned or replaced once per year. A clean filter allows the dehumidifier to run at full capacity and
prevents damage to the dehumidifier. To remove the filter, unplug or disconnect power to the dehumidifier. Remove the filter by removing the
filter access door on the side of the unit. The filter can be cleaned by flushing with warm water and a detergent solution. Allow the filter to
dry before reinstalling in the dehumidifier. Reinsert the cleaned or new filter, replace the filter access door and reconnect power/turn on the
dehumidifier. A replacement filter, Model 4904, is available from your installing contractor or from most HVAC contractors in your area.
AIR FILTER
The drain and drain hose should be checked and cleaned of debris annually.
DRAIN
The surface of the Model 76 Dehumidifier Control can be cleaned with water or a non-abrasive household cleaner, including glass cleaner.
Do not spray any liquid directly onto the control. Spray water or a cleaner onto a soft cloth and gently wipe the surface of the control.
CONTROL
P.O.Box1467•Madison,WI53701-1467•Phone:800/334-6011 •Fax:608/257-4357•www.aprilaire.com
10009849 9.13
B2205737C
Printed in U.S.A.
© 2013 Aprilaire – A division of Research Products Corporation
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